First, it looks more vivid color with these fans in the tower makes more out particularly in my Tower where you can look purely
Technically, he has more speed, the fan of old was between 500-1500 U / min and has a maximum of 2500 U / min
I do not regret both fans are very clear this is audible at maximum speed but that happened only when charge properly or it runs very quietly and cools my I7 3770K very well down
With the original fan from the CPU I have reached more than 90 ° of is not even up to 50 ° at maximum load while the side of the tower was open